NeTS ProWIN: Topology And Routing With Steerable Antennas

NetS ProWIN：可操纵天线的拓扑和路由

• 批准号: 0520312
• 负责人: Dirk Grunwald
• 金额: $ 50万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0520312&HistoricalAwards=false
• 关键词: NeTS; ProWIN; Topology; Routing; Steerable

This project addresses the scalability of wireless networks when steerable phase array antennas are used by a subset of the network and builds on earlier work resulting in a modified MAC layer for such steerable antennas. This earlier found that limited use of that steerability was needed; rather than change antenna configuration on a packet-by-packet basis, antenna configurations are designed to target a slowly changing set of nodes. That work begged the question of how those slowly changing sets of nodes should be formed. This project uses spatial diversity to improve the efficiency of the physical layer and proposes a network layer that enables efficient spatial reuse at the physical layer. This includes dynamically defining the topology, or connectedness, of the network as well as the routing, or use of available connections. This problem is challenging because phase array antennas not only change the direction of RF signal, they also vary the strength of that signal. This project includes development and use of a research network combining fixed and mobile nodes using a combination of steerable and fixes antennas. This platform will use SoftMAC, a low cost software defined radio, to deploy prototype systems for in-field experimentation. Example applications for this project include city- and emergency service networks, and the researchers will be working with local Police and Fire departments to understand, model and analyze usage scenarios for these highly dynamic networks. The work in this project should make these rapidly deployed wireless networks more flexible and resistant to failure.

该项目解决了网络子集使用可操纵相控阵天线时无线网络的可扩展性问题，并建立在早期工作的基础上，为此类可操纵天线修改了 MAC 层。早些时候发现需要有限地使用这种可操纵性；天线配置不是逐个数据包地改变天线配置，而是针对缓慢变化的节点集而设计。这项工作提出了一个问题：这些缓慢变化的节点集应该如何形成。 该项目利用空间分集来提高物理层的效率，并提出了一种网络层，可以在物理层实现高效的空间重用。这包括动态定义网络的拓扑或连接性以及可用连接的路由或使用。这个问题具有挑战性，因为相控阵天线不仅改变射频信号的方向，而且还改变信号的强度。该项目包括开发和使用使用可操纵和固定天线组合的固定和移动节点相结合的研究网络。该平台将使用 SoftMAC（一种低成本软件定义无线电）来部署原型系统进行现场实验。该项目的示例应用包括城市和紧急服务网络，研究人员将与当地警察和消防部门合作，了解、建模和分析这些高度动态网络的使用场景。该项目的工作应该使这些快速部署的无线网络更加灵活且不易出现故障。